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Share-Based Compensation (Tables) | 9 Months Ended
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Sep. 30, 2020
Share-Based Compensation |
Schedule of stock option activity | ​
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​ | ​ | ​ | ​ | ​ | ​ | Weighted | ​ | ​ | ​
​ | ​ | ​ | ​ | Weighted | ​ | Average | ​ | Aggregate | ​
​ | ​ | ​ | ​ | Average | ​ | Remaining | ​ | Intrinsic | ​
​ |  | Shares |  | Price |  | (Yrs.) |  | (000's) |
Outstanding at January 1, 2020 | ​ | 176,888 | ​ | $ | 67.14 | ​ | ​ | ​ | ​ | ​ | ​
Assumed stock options and warrants from CSFL merger | ​ | 136,831 | ​ | ​ | 37.85 | ​ | ​ | ​ | ​ | ​ | ​
Exercised | ​ | (23,012) | ​ |  | 32.14 | ​ | ​ | ​ |  | ​ | ​
Outstanding at September 30, 2020 | ​ | 290,707 | ​ |  | 56.13 | ​ | 4.57 | ​ | $ | 1,529 | ​
Exercisable at September 30, 2020 | ​ | 290,707 | ​ | ​ | 56.13 | ​ | 4.57 | ​ | $ | 1,529 | ​
Weighted-average fair value of options granted during the year | ​ | $0.00 | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Summary of nonvested restricted stock | Nonvested restricted stock for 2020 is summarized in the following table. All information has been retroactively adjusted for stock dividends and stock splits. ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ |  | Weighted- |
​ | ​ | ​ | ​ | Average |
​ | ​ | ​ | ​ | Grant-Date |
Restricted Stock | ​ | Shares | ​ | Fair Value |
Nonvested at January 1, 2020 |  | 69,450 | ​ | $ | 58.96 | ​
Assumed restricted stock shares from CSFL merger | ​ | 9,755 | ​ | ​ | 60.27 | ​
Granted |  | 9,145 | ​ |  | 55.96 | ​
Vested |  | (71,193) | ​ |  | 58.76 | ​
Forfeited |  | (317) | ​ |  | 65.86 | ​
Nonvested at September 30, 2020 |  | 16,840 | ​ |  | 58.81 | ​
Summary of nonvested RSUs | Nonvested RSUs for the nine months ended September 30, 2020 is summarized in the following table. ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ |  | Weighted- |
​ | ​ | ​ | ​ | Average |
​ | ​ | ​ | ​ | Grant-Date |
Restricted Stock Units | ​ | Shares | ​ | Fair Value |
Nonvested at January 1, 2020 |  | 324,601 | ​ | $ | 76.44 | ​
Assumed restricted stock units from CSFL merger | ​ | 388,381 | ​ | ​ | 60.27 | ​
Granted |  | 376,026 | ​ |  | 60.74 | ​
Vested | ​ | (274,847) | ​ | ​ | 75.68 | ​
Forfeited | ​ | (66,992) | ​ | ​ | 74.44 | ​
Nonvested at September 30, 2020 |  | 747,169 | ​ |  | 60.59 | ​

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- Definition Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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